<template>
  <div class="login-container">

    <div class="login_box">

      <!-- 头像区域 -->
      <div class="avatar_box">

        <img src="../assets/logo.png" alt="">

      </div>

      <!-- 登录表单区域 -->
      <el-form ref="loginFromRef" :model="loginfrom" :rules="loginFormRules" class="login_form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginfrom.username" prefix-icon="el-icon-user" style="border: 0.1px solid "></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model="loginfrom.password" type="password" prefix-icon="el-icon-lock"
            style="border: 0.1px solid "></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>

        </el-form-item>
      </el-form>
      <!-- 头像区域 -->

    </div>

  </div>
</template>

<script>


export default {

  data() {

    return {


      loginfrom: {

        username: 'admin',
        password: '123456'

      },

      //这里表单的验证规则对象
      loginFormRules: {
        //验证用户名是否合法
        username: [

        { required: true, message: '请输入登录名称', trigger: 'blur' },
        { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }

        ],
        //验证密码是否合法
        password: [

        { required: true, message: '请输入登录密码', trigger: 'blur' },
        { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }


        ],


      }

    }

  },
  methods:{

    //点击重置按钮，重置登录表单
    resetLoginForm(){
      //拿到子组件的方法
      this.$refs.loginFromRef.resetFields();

    },

    login(){

      //validate()接收一个回调函数返回验证表单的结果
      this.$refs.loginFromRef.validate(async valid=>{

      console.log(valid)

      if(!valid)return;

      const {data:res}=await this.$http.post("login",this.loginfrom);
      if(res.meta.status!=200)return this.$message.error("用户名或密码错误")

      this.$message.success("登录成功")
      //1.将登录成功之后的token,保存到客户端的sessionStorage中
      //1.1项目中除了登录之外的其他API接口,必须在登录之后才能访问
      //1.2token只应在当前网站打开期间生效，所以将token保存在sessionStorage中
      window.sessionStorage.setItem("token",res.data.token);
      //2.通过编程式导航跳转到后台主页，路由地址式/home
      this.$router.push("/home");

      });


  },

}

}

</script>

<style>
.login-container {

  background-color: #2b4b6b;
  height: 100%;

}

.login_box {

  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);


  .avatar_box1 {
    height: 50px;
    width: 400px;
    /* 修改为正方形以匹配圆形效果 */
    border: 1px solid #000;
    overflow: hidden;
    /* 防止圆形内容溢出 */
  }

  .avatar_box1 input {
    /* 修改为元素选择器或保持类选择器但确保HTML中对应 */
    height: 100%;
    width: 100%;
    border-radius: 10%;
    box-sizing: border-box;
    /* 确保边框和内边距不会增加尺寸 */
  }



  .form-box {

    background-color: #000;
    width: 100%;

  }

  .avatar_box {

    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;

    img {

      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;

    }


  }

}

.login_form {

  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;

}

.btns {

  display: flex;
  justify-content: flex-end;

}
</style>
